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  by fitting
     The three pure component parameters of 14 n-alkanes and carbon dioxide were determined by fitting the saturated vapor pressure and saturated liquid density data simultaneously over wide temperature and pressure ranges.
     由拟合正构烷烃的饱和蒸汽压和液相密度所确定的3个纯组分参数与碳原子数呈良好线性关系. 对19种纯物质饱和蒸汽压和液相密度数据计算的平均相对误差分别为1.52%和2.97%;
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     The fitting results are in agreement with the experimental results. The double capacitance C_(dl),the charge transfer resistance of Li ion insertion/deinsertion Rct,and Li ion diffusion coefficient D_(Li) under different potentials are obtained by fitting the model.
     由拟合得到不同电位下电荷传递电阻(R_(ct)),锂离子在固体中扩散系数(D_(Li))及双电层电容(C_(dl))等参数。
短句来源
     The Kihara potential parameters of the pure substances were obtained by fitting P- V-T experimental data of these substances in vapor-liquid coexisting regions (0. 5< Tr < 1. 0) . The results of fitting were improved when the parameters were assumed to be linear functions of temperatures.
     纯物质的Kihara位能函数参数由拟合各物质在气液共存温度区(0.5
短句来源
     Pure component parameters were obtained by fitting vapor pressure, saturation liquid density and supercritical PVT data.
     纯物质的参数由拟合纯物质的蒸汽压,饱和液相密度或超临界的PVT数据获得.
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     The parameters were obtained by fitting the experimental data to the computational results of the pressure-volume relation of tracheae.
     由拟合气管p-V关系的实验数据和计算结果得到了肌肉的材料参数.
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  “由拟合”译为未确定词的双语例句
     The obtained results show that the speed is widely dispersed from 1688.8m/s to 2414.5m/s, and the value of speed, Cs(m/s), tends to decrease with the increase of the gallstone thickness, D(mm), which can be described by the regression equation Cs= 3382.2 D-0.30 m/s (correlation coefficient r=0.92).
     结果表明,声速值分布很宽,从1688.8m/s到2414.5m/s,且声速值C_s(m/s)随胆石厚度D(mm)增加而趋于减小,其变化关系可由拟合方程C_s=3382.2×D~(-0.30)予以描述(r=0.92)。
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     Correlation between the refractive index and composition is reported: n25D =1.3286 + 0.1684x_(DMAC)-0.0572x2_(DMAC) liquid equilibrium data of DMAC-Water system have been determined by double circle vapor-liquid equilibrium kettle.
     首先使用阿贝折光仪测定DMAC—水二元系统折光率—组成数据,由拟合得折光率—组成关系式:n_D~(25)=1.3286+0.1684x_(DMAC)-0.0572x_(DMAC)~2。
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     Finally spectroscopy constants(Be,αe,ωe,and ωeχe) are calculated,which are in good agreement with the experimental data.
     由拟合得到的势能函数计算与X2∑+态相应的光谱常数(Be、eα、ωe和ωeχe),其结果与实验符合得较好.
短句来源
     The average life-time of the system is about (4—6)×10~(22) s.
     由拟合实验角分布得到的平均寿命是(4—6)×10~(-22)秒。
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     The interactive relation between peak position of magnetic leakage signals of crack and width and depth of crack is discussed,and the equations about quantitative calculation of crack are given,then quantitative calculation of crack is realized by solving the equations.
     通过分析裂纹漏磁信号峰值点位置与裂纹宽度和深度及传感器提离值的相互作用关系 ,分别建立提离值与漏磁峰值位置、裂纹宽度和深度与漏磁峰值位置的拟合函数 ,由拟合函数建立求解裂纹宽度和深度的方程组 ,利用漏磁检测所得的漏磁峰值将裂纹定量计算的不确定性转化为求解方程组的惟一解 ,实现了裂纹的定量计算。
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  相似匹配句对
     Its concept was first presented by O.
     O.
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     Based on the experiential formula which is produced by C.
     在C.
     Curve Fitting Defined By Histogram
     直方图限定的曲线拟合
短句来源
     Estimation of the Limiting Fouling Resistance by curve Fitting
     曲线拟合估算极限污垢热阻
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     Determining Straight
     拟合直线
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  by fitting
Various methods of determining the characteristics of the capillary system under consideration by fitting the parameters of Laplace's equation are discussed.
      
The problem is solved by fitting solutions on the horizontal boundary that continues the bottom of the shallow-water region of the basin; the factorization method is used.
      
The rate constant of Rh(IV) reduction with water was calculated by fitting to the experimental data.
      
The constants of NpO2+-Mg2+ and NpO2+-Ca2+ binary ion exchange on kaolinite were determined by fitting the experimental results with an ion-exchange equation for the restricted sorption capacity:
      
The constants of binary ion exchange NpO2+-Mg2+ and NpO2+-Ca2+ on montmorillonite determined by fitting the experimental results are
      
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In this model, the nucleus is consiered as a continuous medium with variable nucleon densities, ρ_p andρn. The energy of the system is expressed by the formula:where ρo=t/(4πa~3)[1+exp((r-R)/a)]~(-1) is a reference density which is assumed to be the average density of an ideal nucleus with N=Z and without coulomb interactions. The binding energy and the density distributions of a nucleus were determined from the condition δE=0.The parameters were determined by fitting the nuclear masses and the general behavior...

In this model, the nucleus is consiered as a continuous medium with variable nucleon densities, ρ_p andρn. The energy of the system is expressed by the formula:where ρo=t/(4πa~3)[1+exp((r-R)/a)]~(-1) is a reference density which is assumed to be the average density of an ideal nucleus with N=Z and without coulomb interactions. The binding energy and the density distributions of a nucleus were determined from the condition δE=0.The parameters were determined by fitting the nuclear masses and the general behavior of unclear charge distributions. Their preliminary values are: a=0.528 fm, t=0.3, a_1=16.1027 MeV, a_3=26.583 MeV, a_4=15.19 MeV, a_6=14.62 MeY, a_2=1/2 a_2, a_5=1/2 a_6. With this set of parameters, together with Myers and Swiatecki's formulae for shell corrcctions and pairing energies, the experimental nuclear masses can be reproduced wi thin 5 MeV and the nuclear mean wqare root radius within a few percent. These constants probably could further be improved by fitting other nuclear properties.With this new mass formula, the empirical mass difference between mirror nuclei can be reproduced within 4% (for A≥20). This is a substantial improvement over the liquid drop model. A theory of nuclear giant multipole resonance was developed by this model. Preliminary calculation on the giant dipole resonance yields rather promising results.

本文将原子核看成一连续介质,其能量及密度由一假设的能量泛函经变分法求出。式中所含参量由拟合核质量及电荷分布的平均行为给出。用本文公式算出的镜象核质量差与实验值的偏离在4%以内(A≥20),较液滴模型有较大改进。文中还讨论了用这模型处理核密度的多极振荡问题,初步的计算结果与实验符合的情况是好的。

~(27)Al and ~(nat)Ca target were bombarded by the Carbon beam at incident energy 69.5MeV. The reaction products were identified by △E-E telescope and the spectra of Li, Be, B, N, O elements were obtained.The values of deformation parameter of emitted fragmente are between 0.28—0.44. Calculated energy of full damped fragments are in agreement with the experimental data. The average life-time of the system is about (4—6)×10~(22) s.

入射能量为69.5MeV的碳束轰击~(27)Al和~(nat)Ca靶,用△E-E计数器望远镜鉴别反应产物,测得Li、BC、B、N、O诸元素能谱,在两体反应假设下,得到了质心系能谱、角分布、E-θ平面上双微分截面d~2σ/dEdθ的等高线图。假定在断裂时刻碎片相对运动动能可以忽略,绝热近似条件得到满足,并且碎片只有旋转对称的四极形变,从而得到决定断点处碎片运动的三个方程,求解这组方程,得到断点拉长度,并得到出射碎片的总动能。计算得到的出射碎片的形变参数是在0.28—0.44之间,其全阻尼能量与实验结果基本相符。由拟合实验角分布得到的平均寿命是(4—6)×10~(-22)秒。

A method of computer data processing for sedimentation analysis is introduced. The computer find out the distribution curve using the data derived from the original experimental data by curve-fitting, rather than using the crude data directly. Results from various experiments show that this approach is much easier and more precise than the traditional ways. A BASIC Ⅱ program and some simple explanation are also recommended

本文介绍了一种用微计算机处理沉降分析数据的方法。这种方法先对实验数据进行曲线拟合,然后由拟合曲线求出粒度分布曲线。实验结果表明这一方法是简洁而有效的。文章最后介绍了一个在化学分析中的通用程序。

 
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